Colouring Paper for Artificial Flowers.—Davis gives the following recipes for colouring one ream of paper of medium weight and size, sap colours only being used, and principally those containing much colouring matter. The gum arabic given in the recipes is dissolved in the sap-liquor.

Blue (dark) 1.—Mix 1 gallon of tincture of Berlin blue with 2 ozs. each of wax soap and gum tragacanth. 2. Mix ¾ gallon of tincture of Berlin blue with 2 ozs. of wax soap, and 4¼ ozs. of gum tragacanth.

Crimson.—Mix 1 gallon of liquor of Brazil wood compounded with borax, 2 ozs. wax soap and 8¾ ozs. of gum arabic.

Green.—1. Take ½ gallon of liquor of sap-green[28], 4¼ ozs. of indigo rubbed up fine, 1 oz. of wax soap, and 4½ ozs. of gum arabic. 2. ½ gallon of sap-green liquor, 4¼ ozs. of distilled verdigris, 1 oz. of wax soap, and 4½ ozs. of gum arabic.

Yellow (golden).—Mix 6½ ozs. of gamboge with 2 ozs. of wax soap.

Yellow (lemon).—1. Compound 1 gallon of juice of Persian berries with 2 ozs. of wax soap and 8¾ ozs. of gum arabic. 2. Add to 1 gallon of quercitron liquor, compounded with solution of tin, 2 ozs. of wax soap, and 8¾ ozs. of gum arabic.

Yellow (pale).—Mix 1 gallon of fustic, 2 ozs. of wax soap, and 8¾ ozs. gum arabic.

Yellow (green).—Compound 1 gallon of sap-green liquor with 2 ozs. each of distilled verdigris and wax soap, and 8¾ ozs. of gum arabic.

Red (dark).—1 gallon of Brazil-wood liquor, 2 ozs. of wax soap, and 8¾ ozs. of gum arabic.